Grating apparatus



Dec. 21 1926.

A. PINCUS GRATING APPARATUS Filed May 20, 1925 INVENTCR, Qxvgkxmmvlkmua,

Patented Dec. 21, 192%.

warren GRATING APPARATUS.

Application filed liflay 29, 19535.

This invention relates more particularly to a class of apparatus for usein the preparation of classes of food products.

My invention has for its object primarily to provide an apparatusdesigned to be employed for grating or granulating potatoes, turnips,carrots apples and other vegetables and fruit especially those ofbulbular forms so that they may be prepared with facility in variousways in a raw state or for being cooked and which is of a form adaptedto overcome the objections to the usual methods wherein the grating ofthese classes of food products is usually accomplished by hand withattendant danger of injury to the per son doing the work. The inventioncontemplates mainly the provision of a suationary tapered cylinderhaving in its walls spaced orifices or outlets each with inwardlyprotrading cutting edges for grating vegetables and fruit and fordischarge through the ori-- fices of the grated particles of theproducts. In the cylinder is a rotary shaft having an encircling spiralblade for causing the vegetables or fruit admitted into the cylinder tobe moved lengthwise of the cylinder into contact with the cutting edgesof the orifices. The cylinder is of a length and the orifices in suchnumbers that the products will be grated substantially in entiretyduring their passage in the cylinder, and in turn the work of preparingthe products will be greatly facilitated.

A further object of the invention is to provide a grating apparatus of asimple, efficient and durable construction which may be made inappropriate sizes and shapes.

WVith these and other objects in view, the invention will be hereinaftermore fully e2:- plained with reference to the accompanying drawingforming a part of this specification in which similar characters ofreference in dicate corresponding parts in all the views, and will thenbe pointed out in the claim. at the end of the description.

In the drawing, Figure 1 is a perspective view of one form of gratingapparatus embodying my invention, and

F ig. 2 is a sectional view, partly in detail and partly fragmentartaken longitudinally through the apparatus.

The apparatus has a cylinder 10 which may be of any appropriate size forholding movably therein vegetables or fruit of main 1y bulbular forms,such as potatoes, turnips, carrots, apples and like products, and theSerial No. 31,562.

cylinder 10 has an annular metal wall 11 which is preferably taperedlengthwise. In spaced parts of the wall 11 of the cylinder throughoutapproximately its entire length are spaced orifices 12, each having itsentire edge portion protruding or tapered inwardly of the cylinder, andthe protruding edge of each orifice is sharpened, at 13. The oriflees 12provide outlets for discharge of the contents of the cylinder, and thesharp ened edges 18 of the orifices provide cutters for gratingvegetables and fruit. Extending upwardly from the large end of the wallof the cylinder may be a hopper 1 1 leading into the cylinder forserving as an inlet through which vegetables and fruit are admitted intothe cylinder. The end of the cylinder is closed bv a removable cover, as15, having in its central portion a bore or bearing 16 which is alinedwith the center lengthwise of the cylinder. Olosingthe redu ed end ofthe wall of the cylinder is a fin-ed plate 1'? preferably ofsubstantially a rectangular shape of a dimension consider ably largerthan the circumference of the wall 11 of the cylinder, and in this plateis a bore or hearing 18 which is in register with the bore 16 of thecover 15.

Within the cylinder 10 is a shaft 19 of a length so that it rotativelyextends from the cover 15 to the fixed plate 17, and this shaft ispreferably of larger diameter than the bore 16 of the cover and the bore18 of the plate 17. Extending from one end of the shaft 19 is a stud 20which is rotatably disposed through the bore 16 ofthc cover 15, and thisstud is of such length that it protrudes be yond the cover. Projectingfrom the other end of the shaft 19 is another stud 21 which. isrotatably disposed through the bore 18 of the fixed plate 17. Bolted, asat 22, or otherwise removably fastened on the free end of the stud 21 isa disk 23 of larger circumference than the diameter of the stud 21, andthis disk rotatably contacts with the face of the plate 17 for holdingthe shaft 19 in the cylinder as well as for preventing tendency of theshaft to slidably move lengthwise of the cylinder. ()n the face of theplate 17 opposite to the cylinder 10 may be a second substantiallyrectangular plate 2 1 of a size similar to the plate 17, and in theplate 24 is a socket, as 25, in which the disk 23 of the shaft 19 isrotat-ably seated. The plates 17 and 24 are detachably fastened togetherby screws 26 or otherwise, and encircling the shaft is a spiral fiatblade 2'? which isrotatable with the rotation 01". the shaft. The spiralblade 27 is of such a length that its ends terminate in close proximityto the cover and to the plate 17. The blade is of a shape so that thetree edges of its convolutions 28 taper similar to the taper of theorificed wall 11 of the cylinder, and the blade is or" such a varyingwidth that the tree edges oi its convolutions will move inclose'proximity to the cutting edges l3 of the orifices or outlets 12 ofthe cylinder. On the protruding end of the stud of the shaft 19 is acrank handle, as 29, for permitting the shaft 19 and the spiral blade 2?to be manually rotated, and under the cylinder 10 may be a tray, as 30,for receiving the grated vegetables or fruit discharged from the cyliner The tray may be of any appropriate size and shape, though the formoi? the tra illustrated is approximat-el rectangular t provide abottonrgl, front wall 82, rea wall 33 and side walls in the central partof the upper edge of the front wall 22 may be a partially circularnotch, 8" The tray is of a length so that the front por tion of thecylinder 10 disposed in notch 36 and so that the plate 2% :1 against theinner face of the rear we with the lower edges of both of the p 17 and24; rest ng on the bottom 31 or tray.

The tray is preferably of a width that 1 its side walls 34, 35 areconsiderably spaced from the cylinder 10, and the cylinder is reinovablyfastened to the tray hy one or more screws and wing nuts, as beingthreaded through registered holes in the plates 1'? and 24; of thecylinder and in the rear wall 33 of the tray.

When the apparatus is operated for grating vegetables, fruit and thelike, one or a number 'ot the food products are inserted into thecylinder through the hopper or inlet 14 and the products will passbetween the convolutions 28 at the forward end of the blade By thenturning the handle 29 from left to right the shaft 19 and he blade willbe rotated, and the product will he revolvably moved by the convolntions01 the blade into contact with the cutting edges 13 oi the orifices oroutlets of the wall 11 of the cylinder. The product will thereby begradually grated during its passage toward the reduced end of thecylinder for being practically ted in entirety by properly proportionin'the cylinder 10, the shaft 19 and the spira lade 27. During the gratingprocess the particles of the product will he harged through the outlets12 of the cylinto the receiving tray 30. hen it desired to clean theinterior of nder ill, the shaft and the guide may be removed from thetray 30 screwing the nuts and bolts 37, andithe 2 with the cylinder andother he separated from the tray. By l0! en n (he bolts 26 the plate 2%may he ited from the plate 17', and by loosen the halt the dish 23 maybe separated .7 in the stud 21 out the shaft 19. The crank handle cover15 and the shaft 19 with the bla re 2 y be removed. from the cylinder 10tor l rig cleanerh and these parts of the apparatus may he reassembledby subseaatcning them together.

foregoing description, I haveem- '1 ed term of my invention, ish to beunderstood limit- .i thereto, as l are aware that modinay be madetherein without-dehe spirit or sacrificing any of ,es of this invention,therefore, 1 reserve to myselr the right to malre such changes as fairlyfall within the tying thus described my invention, 1 as new and desireto secure by Letters ment having a recess therein, a tapered perfratedcylinder having its smaller end seto the abutment, a head havingcenperture closing the larger end of the I ABRAHAM Pincus.

scope r ating apparatus comprising an abut Fill

